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check for invalid protocol when dispatch fails

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treat ISC_R_INVALIDPROTO as a networking error when it occurs.

(cherry picked from commit 2269a3e6fb)
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Evan Hunt 2023-04-05 14:05:46 -07:00 committed by Ondřej Surý
parent 2a714c25f8
commit 960e4dadd2
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1 changed files with 1 additions and 0 deletions
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lib/dns/resolver.c
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@ -8178,6 +8178,7 @@ rctx_dispfail(respctx_t *rctx) {
case ISC_R_NETUNREACH:
case ISC_R_CONNREFUSED:
case ISC_R_CONNECTIONRESET:
case ISC_R_INVALIDPROTO:
case ISC_R_CANCELED:
case ISC_R_SHUTTINGDOWN:
rctx->broken_server = rctx->result;